Coaxial cable with bidirectional data transmission

ABSTRACT

A vision system for a vehicle includes a camera and a control. The camera is disposed at a vehicle and has a field of view exterior of the vehicle. The camera is operable to capture image data. The control includes an image processor. A single coaxial cable connects the camera with the control. The single coaxial cable carries (i) image data from the camera to the control, (ii) control data from the control to the camera and (iii) electrical voltage for powering the camera. The image processor is operable to process image data captured by the camera and carried to the control by the single coaxial cable. The single coaxial cable carries at least one FBAS signal.

CROSS REFERENCE TO RELATED APPLICATIONS

The present application claims the filing benefits of U.S. provisionalapplications, Ser. No. 61/864,837, filed Aug. 12, 2013, and Ser. No.61/833,080, filed Jun. 10, 2013, which are hereby incorporated herein byreference in their entireties.

FIELD OF THE INVENTION

The present invention relates generally to a vehicle vision system for avehicle and, more particularly, to a vehicle vision system that utilizesone or more cameras at a vehicle.

BACKGROUND OF THE INVENTION

Use of imaging sensors in vehicle imaging systems is common and known.Examples of such known systems are described in U.S. Pat. Nos.5,949,331; 5,670,935; and/or 5,550,677, which are hereby incorporatedherein by reference in their entireties.

SUMMARY OF THE INVENTION

The present invention provides a vision system or imaging system for avehicle that utilizes one or more cameras (preferably one or more CMOScameras) to capture image data representative of images exterior of thevehicle, and provides the communication/data signals, including cameradata or captured image data, that may be displayed at a display screenthat is viewable by the driver of the vehicle, such as when the driveris backing up the vehicle, and that may be processed and, responsive tosuch image processing, the system may detect an object at or near thevehicle and in the path of travel of the vehicle, such as when thevehicle is backing up. The vision system may be operable to display asurround view or bird's eye view of the environment at or around or atleast partially surrounding the subject or equipped vehicle, and thedisplayed image may include a displayed image representation of thesubject vehicle.

The present invention provides for the transfer of some or all data(such as image data captured by a camera and camera control data for useby the camera) over just one coaxial line (cable) and to eliminate theneed of LIN or CAN transceivers, such as by transferring control datavia at least one analog signal such as via modulation to a (sinusoidal)carrier wave, which has a frequency that is off or outside the bandwidthof the frequency of the image data FBAS (or other analog or digitalimage data format/encryption/modulation) signal (anddecoupling/demodulating/filtering both signals at the other end of thedata line). The term FBAS-signal stands forFarb-Bild-Austast-Synchron-Signal (in English, such a signal is commonlyreferred to as CVBS, which stands for Color, Video, Blanking, and Sync).Optionally, the present invention may also reduce the need for having aprocessor in the camera. Optionally, and in accordance with the presentinvention, DC power for powering the camera may be carried over the samecoaxial line (from the ECU or image receiving device).

These and other objects, advantages, purposes and features of thepresent invention will become apparent upon review of the followingspecification in conjunction with the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a plan view of a vehicle with a vision system thatincorporates cameras in accordance with the present invention;

FIG. 2 is a schematic of a known LIN calibration data and FBAS imagedata transmission;

FIG. 3 is a schematic of a data transmission system and cable inaccordance with the present invention;

FIG. 4A is a graph of carrier frequencies that may be selected for adata channel beside the video data channel of the system of the presentinvention;

FIG. 4B is a graph of different carrier frequencies that may be selectedfor the camera calibration data channel, the ECU control data channelbeside the video data channel of the system of the present invention;

FIG. 4C is a graph of different carrier frequencies that may be selectedfor the camera calibration data channel, the ECU control data channeland with the video data also modulated onto a HF carrier channel of thesystem of the present invention;

FIG. 4D is a graph of a single carrier frequency that may be selectedfor a common data channel of video data as well as parameter and controldata of the system of the present invention;

FIG. 4E is a graph of the system of the present invention showingdifferent MHz carrier frequencies that may be selected for the cameracalibration data channel, the ECU control data channel, with the videodata also modulated onto a HF carrier channel, and with an additionallow frequency of the camera's AC power supply;

FIGS. 5A and 6A are schematics of imaging systems of the presentinvention transmitting the video data of the camera via (non-modulated)FBAS and bidirectional parameter and control data during the sync pause(in accordance with a frequency spectrum such as shown in FIG. 4A);

FIGS. 5B and 6B are schematics of imaging systems of the presentinvention transmitting the video data of the camera and bidirectionalparameter and control data modulated on one (identical) carrier wave(see FIG. 4D), with the data transmitted during the sync pause;

FIGS. 7A and 8A are schematics of imaging systems of the presentinvention transmitting both the video data of the camera andbidirectional (parameter and control) data modulated each on differentcarrier waves (see FIG. 4D), with a circuit shown for transmitting DCsupply current from the ECU to the camera;

FIGS. 7B and 8B are schematics of imaging systems of the presentinvention transmitting both the video data of the camera andbidirectional (parameter and control) data modulated each on differentcarrier waves, with a circuit shown for transmitting AC supply currentfrom the ECU to the camera (in accordance with a frequency spectrum suchas shown in FIG. 4E);

FIG. 9 is a schematized circuit diagram of how a camera inherent powerconverter can be used as an amplitude modulator for sending camera data(mono-directional);

FIG. 10 is a simplified schematic of a TPS54062, which may be used aspower converter in the schematized circuit diagram of FIG. 9;

FIG. 11 is a functional block diagram of a TPS54062, which may be usedas power converter in the schematized circuit diagram of FIG. 9; and

FIG. 12 is a basic driver circuit which may be used as a modulator blockfor the circuits of FIGS. 7A and 7B.

LEGEND

20 Camera device according the invention

21 Imager

22 parallel digital video (RGB)

23 Î2C data transmission

24 Analog Signal diver/receiver/modulator and encoder for FBAS signal

25 Coaxial cable line

26 Analog Signal diver/receiver/modulator/decoder and filter for FBASsignal

27 Video signal (alone), e.g., FBAS

28 bidirectional data signal (alone)

29 Image control and processing unit

30 ECU according the invention

31 Video encoder digital to analog (e.g., FBAS)

32 LIN/CAN transceiver

33 twisted pair line

34 LIN/CAN line (of any nature)

35 LIN/CAN transceiver

36 Video decoder

37 Sync detector and timing logic for camera

38 Video buffer

39 Data buffer camera

40 Known art camera device

50 ECU of known art

61 Data buffer ECU

62 Driver or modulator

63 Receiver or demodulator

64 Mixer or modulator

65 Filter or demodulator

66 Data switch

67 Switch timing signal

70 Video modulator, e.g., frequency adder camera side

71 Data demodulator camera side

72 Data demodulator ECU side

73 High pass filter

74 Band pass filter

75 Low pass filter

76 Video demodulator ECU side

77 Data modulator camera side

78 Data modulator ECU side

79 (highest) HF signal source or generator

80 (medium high) HF signal source or generator

81 (lowest) LF signal source or generator

82 Camera supply DC power source ECU side

83 Camera supply DC power node camera side

84 AC/DC filter

85 Camera data (e.g., intrinsic parameter)

86 Camera control data (e.g., white balance)

90 Camera supply AC power source ECU side

91 Camera supply AC power node camera side

92 Camera supply DC power node camera side

93 High pass filter

94 Band pass filter—high

95 Band pass filter—low

96 Shottky diode

210 Imager with on chip μC

DESCRIPTION OF THE PREFERRED EMBODIMENTS

A vehicle vision system and/or driver assist system and/or objectdetection system and/or alert system operates to capture images exteriorof the vehicle and may process the captured image data to display imagesand to detect objects at or near the vehicle and in the predicted pathof the vehicle, such as to assist a driver of the vehicle in maneuveringthe vehicle in a rearward direction. The vision system includes an imageprocessor or image processing system that is operable to receive imagedata from one or more cameras and provide an output to a display devicefor displaying images representative of the captured image data.Optionally, the vision system may provide a top down or bird's eye orsurround view display and may provide a displayed image that isrepresentative of the subject vehicle, and optionally with the displayedimage being customized to at least partially correspond to the actualsubject vehicle.

Referring now to the drawings and the illustrative embodiments depictedtherein, a vehicle 10 includes an imaging system or vision system 12that includes at least one exterior facing imaging sensor or camera,such as a rearward facing imaging sensor or camera 14 a (and the systemmay optionally include multiple exterior facing imaging sensors orcameras, such as a forwardly facing camera 14 b at the front (or at thewindshield) of the vehicle, and a sidewardly/rearwardly facing camera 14c, 14 d at respective sides of the vehicle), which captures imagesexterior of the vehicle, with the camera having a lens for focusingimages at or onto an imaging array or imaging plane or imager of thecamera (FIG. 1). The vision system 12 includes a control or electroniccontrol unit (ECU) or processor 18 that is operable to process imagedata captured by the cameras and may provide displayed images at adisplay device 16 for viewing by the driver of the vehicle (althoughshown in FIG. 1 as being part of or incorporated in or at an interiorrearview mirror assembly 20 of the vehicle, the control and/or thedisplay device may be disposed elsewhere at or in the vehicle). The datatransfer or signal communication from the camera to the ECU may compriseany suitable data or communication link, such as a vehicle network busor the like of the equipped vehicle.

Typically, known art analog automotive vision system cameras,particularly rear and surround view cameras, have no bidirectional datatransmission lines and are typically mono-directional. Typically, suchmono-directional camera systems use a twisted pair cable to transfer ananalog signal of the cameras, such as images captured by the camera'simager to an ECU or image receiving device. A typically used signalformat is FBAS. The power cable is typically separate from the data lineas another cable plugged into the camera.

International Publication Nos. WO 2013/081985 and/or WO 2013/043661,which are hereby incorporated herein by reference in their entireties,suggest use of a bidirectional digital data transmission ofmono-directional camera image data and bidirectional camera parameter orcalibration data over one coaxial cable via an asymmetrically (shield onground as one node/terminal and a coaxial core as the secondnode/terminal) driven LVDS driver plus the camera DC-power coupled andsupplied by the image receiving device.

Relatively primitive high volume, low cost analog (especially FBAS)cameras typically cannot be controlled by an ECU since there is no backchannel. Also, low cost digital cameras often have no control input orchannel. When control via a back channel is desired, a LIN or CANconnection is typically the chosen bus. Twisted pair wired LVDS orEthernet networks are also known (capable for bidirectional datatransfer), such as shown in the schematic of FIG. 2. Mono-directionalcalibration data (to the camera or cameras) may include white balance,brightness or illumination control, pseudo synchronization, contrastenhancement, frame rate (untypically on FBAS), overlay switching, imagecropping control (such as for transferring a reduced amount of imagedata by transferring a limited region of interest that is smaller thanthe full image or a limited amount of color channels of the image). Whenextrinsic or intrinsic parameters transfer from the camera to the ECU, adata channel from the camera to the ECU is necessary (beside the videodata channel). As described in International Publication Nos. WO2013/043661, which is hereby incorporated herein by reference in itsentirety, camera parameter data parallel transmission via the videoframe data stream is provided by adding the data to the video frames.Such a solution lacks suitable imagers that produce a data frame andsuch images tend to be too expensive due to the additional circuitry togenerate data frames. Also, when using more than one camera having intercamera controls or balancing parameters, such parameters may betransmitted to and from the cameras, possibly via other nodes in betweensuch as the ECU eventually via other nodes or gateways. Each of the ECUand the camera(s) needs to possess a twisted pair LIN/CAN/Ethernet/LVDStransceiver and a (typically small) processor for data transmission andhandling accordingly. The data transfer between the imager and peripheryinside the camera is typically done by Î2C. The imager typicallyprovides image data signals by parallel digital (RGB) video or FBAS (seeFIG. 2). If not done via inductive coupling to LVDS via coax asdescribed above, the camera supply is typically done via an extra cableor wire incorporated in the bunch of data wires, typically in DC.

Due to cost advantages, there is the desire to reduce the costs byreducing the number of lines, connectors and expensive components forcamera image (mono-directional) and control data transfer(bidirectional) and power supply.

By transferring control data via at least one analog signal especiallyvia modulation to a (sinusoidal) carrier wave, which has a frequencythat is off or outside of the bandwidth of and with sufficient Shannondistance (or Nyquist distance) from the frequency of the image data FBAS(or other analog or digital image data format/encryption/modulation)signal (such as shown in FIG. 4A) (and decoupling/demodulating/filteringboth signals at the other end of the data line), the present inventionmay transfer all data over just one coaxial line (cable) and mayeliminate the need of LIN or CAN transceivers (see FIG. 3). The sidebands of a carrier signal due to the signal modulation (the widths ofthe data bandwidths) must have a suitable distance to be filtered fromone another. Otherwise, the Shannon-Nyquist criteria is infringed or inother words the (minimal) Shannon-Nyquist distance wasn't reflected whenchoosing the carriers. A greater distance is preferred when usingrelatively simple filters. Because the coaxial cable ‘Ether’ isgenerally empty beside the camera control signals and image data signalsand power signals, the system of the present invention can use largedistances between the frequencies, so long as the system has the carrierbase waves generated for such signals and distances.

Depending on the further circuits and imager interfaces, the presentinvention may optionally also reduce the need for having a processor inthe camera (maybe just using an ASIC). As another option, the presentinvention may transfer the DC power for the camera as well over the samecoaxial line (see FIGS. 7A and 8A) (from the ECU or image receivingdevice) such as similar to the DC power via coaxial cablecoupling/decoupling solution described in International Publication No.WO 2013/043661, incorporated above. Shown in there as positive node thecore wire may be used and as negative node the coaxial cable'sshielding. As an additional aspect of the invention, a coaxial cablewith two shielding layers and one core wire may be used instead.Optionally, the DC may be supplied via both shield layers. Optionally,and desirably, the negative layer or ground layer may be the innershielding layer and the positive node may be applied to the outershielding layer for better signal annuity. The positive node may becapacitively set to the signal ground as well for conserving the doubleshielding effect for the signal (but not grounding the positive node inDC). By that optional configuration the DC coupling impedances may besaved.

As an alternative optional solution, the camera supply may be achievedby transmitting the supply power not as DC but as alternating current(AC) via a mono or multiple shield coaxial cable, such as shown in FIGS.7B and 8B. Optionally, the AC supply may be used as carrier wave. Thevideo or control data may be modulated onto that carrier. Optionally,both may be modulated to the carrier. That may reduce the necessarily togenerate a different carrier frequency than the supply AC frequency.Optionally, the video and control date may be modulated to differentfrequencies than the supply AC's frequency having sufficient Shannondistance to it and each other such as shown in the spectrum diagram ofFIG. 4E and the circuits in FIGS. 7A, 8A, 7B and 8B. These figures showHF sources for delivering the carrier waves to the modulators. These maybe generated separately or may be sourced by the imager frequency.Typically, there are divisions and multiples of the imager frequencypresent on the camera circuit board anyway.

For AC power transmission via a coaxial cable, the most primitivecircuit at power consumer side (the camera side) may be set up by justone impedance, a diode and a capacitor. In FIG. 7B, an exemplary circuitis shown. The diode cuts the bottom of the AC supply wave, the capacitoron node 92 is for providing power during the negative signal half wave.Optionally, the coil may have multiple voltage taps when the consumerside system (camera system) requires more than one source voltage.Optionally, more voltage smoothing measures may be comprised in theconsecutive circuits to smooth the voltage more when required. Formaking the consumer side capable to send data, the most primitivesolution may be to substantially shortcut both nodes of the inductivityin short duration. This will equate to a primitive amplitude modulationwith the short cut change pattern as its base frequency (selected in aShannon distance to the AC supply frequency and other signal carrierfrequencies).

FIG. 12 shows a basic driver circuit which may be used as the modulatorblock 77 in FIGS. 7A and 7B. The digital input switches the carrier tothe output on and off. This will equate to an amplitude modulation withthe signal frequency as side band distance to the supplied carrierfrequency 81.

In FIGS. 9-11 the (mis-)use of a camera inherent power converter,especially a TPS54062 as active element for amplitude modulation, isshown. Such a circuit allows to have an AM modulator without adding manycomponents to the camera PCB. When a digital parameter data signal isput to the RT/CIK pin (via a small transistor as a driver), the inputcurrent of the converter rises and falls in the manner of the signal.Such a signal is detectable at the ECU side.

With both ways of having the supply power DC transmitted via inductivedecoupling from the data signals or having the supply power transmittedAC as another frequency, as discussed above, the control data will bemodulated to a carrier, and this may happen fully analog or partiallyanalog, partially digital.

As an example, but not exclusively limiting AM (amplitude modulation),FM (frequency modulation), PSM (phase shift modulation), space and timemodulation, QAM (quadrature amplitude modulation) or any combinationthereof such as APSK (asymmetric phase-shift keying) may be themodulation methods of choice. A FM may be done by using a frequencyadder. A simple adder comprises at least one non-linear component suchas a diode or the like. Analog modulation methods are well studied. Themost common solutions are available in several modifications inintegrated circuits. The complexity and costs are mostly set by thedesired signal quality especially the filter quality. The sharper thefilter edges (in the frequency domain), the more costly these are.

Alternatively, another amplitude modulation (AM) may come into use. Forexample, and with reference to FIGS. 9-11, by switching a steady single(carrier) frequency from and to the data line on which the FBAS (orother analog or digital image data format/encryption/modulation) isalready running, just this frequency and its switching harmonics willappear (such as disturbance to the FBAS or other analog or digital imagedata format/encryption/modulation) additionally. By (band-) filteringthe carrier wave on the FBAS (or other analog or digital image dataformat/encryption/modulation) receiving side (ECU or other image datareceiving device), the further image processing stages can be kept asusual.

In case it is desired that the camera also transmits data like anintrinsic parameter, feedback to control signals and the like, thecamera may also have the ability (and components) to modulate its datato an analog carrier (as a second channel to the image data into theECU's or other image receiving device's direction) as well. This carriermay be identical to (such as shown in the spectrum of FIG. 4A) ordifferent from the carrier used by the sending unit at the ECU side(such as shown in the spectrum of FIG. 4B). When using identicalcarriers, the back and forth data channel (non-image) may work in halfduplex, and when using different carriers, a full duplex may bepossible. When using different carriers, these may be chosen to havesufficient frequency distance (acc. Shannon) for no interfering to eachother.

As another option to increase the signal robustness of the video signal,also the video signal may be modulated onto a carrier using suchcircuits as shown in FIGS. 7A and 8A (DC supplied) and FIGS. 7B and 8B(AC supplied). Since the data bandwidths of the video channel may be thelargest one, the chosen carrier frequency may preferably be higher (atan adequate Shannon distance) as the control and calibration datacarrier or carriers (preferably three carriers: calibration/responsedata from camera to ECU; control/initialization data from ECU to camera;and video data from camera to ECU). Optionally, additional cameras'video data, possibly from a second imager in the same camera housing oran additionally attached or connected camera, may be transmitted overthe same coaxial cable. The additional video data stream may also bemodulated in one of the highest frequencies. Control data channels fromthe ECU or gate way to the camera(s) may be arranged in HF frequenciesbelow the video data streams. The camera calibration data may bearranged in the lowest HF frequency areas due its lowest data volume.When using DC supply in accordance with the circuits of FIGS. 7A and 8A,the LF spectrum is not present, see FIG. 4C. The chosen carrierfrequencies (such as shown in FIGS. 4C and 4E) may be about 20 MHz forthe camera calibration data channel with +/−1 MHz bandwidths, about 80MHz for the ECU control data channel with +/−1 MHz bandwidths and about140 MHz for the video data channel with +/−5.5 MHz bandwidths. Whenusing this channel configuration the video channel may be modulated FMduring the control and the calibration data channel may be modulated AM.This enables the use of common video recorder chip sets.

As an alternative option it may be possible to use (misuse) thetypically 5 MHz sound channel as one data channel carrier since inautomotive vision typically no sound transfer is required. Though thesound bandwidths is very small. Smaller than the usually LIN bandwidth(400 kHz). As an alternative when just black and white (colorless)images are to be transferred it may be possible to use (misuse) thetypically 4.43361875 MHz phase shift in which usually the color istransferred as one data channel carrier. As another aspect of thepresent invention, the carrier frequencies may be divider frequencies ofthe imager's quartz frequency.

As an option for one signal channel or a shared channel by half duplex,the control and calibration data signal may be transferred during theblank interval (block diagrams or schematics of such data transmissionset ups are shown in FIGS. 5A and 6A). The video signal gets transmittedunmodulated while the data signals are modulated by a pair ofmodulators/demodulators on each side of the coaxial cable. The accordingspectrum may be comparable to the one of FIG. 4A, preferably when usingjust one channel together with the video signal (just one carrier suchas shown in the according spectrum of FIG. 4D) (block diagrams of suchdata transmission set ups are shown in FIGS. 5B and 6B, where the videosignal gets transmitted via the identical modulator such as a frequencyadder) as the data signals. The according spectrum may be comparable tothe one of FIG. 4D.

Due to having just the sync pause time for parameter and calibrationdata transmission the possible data bandwidths is limited. The codingmay be done in a Manchester code type. As an alternative, both devicesmay be allowed to speak or communicate or transmit in order to the videoline number. In uneven lines, the ECU (or other video receiving devicesuch as a gateway between ECU and camera) may talk to or communicatewith the camera, and in even lines the camera may talk to or communicatewith the ECU (or other receiving device).

As another aspect of the present invention, the receiving unit (e.g. anECU) may use an PLL (phase lock loop) locking to a signal carrierfrequency or when using AC power supply the AC frequency instead ofgenerating it independently (on camera side). By that, frequencygenerating camera components such as a quartz or frequency dividercircuits may be eliminatable (saving cost and space and reducing thelost heat). Additionally, that configuration may be used forsynchronizing the camera or multiple cameras to the ECU (or other videoreceiving device). Optionally, the camera synchronization control (fromthe ECU to the camera) may use a phase shift modulation method duringthe calibration and control data channels (from the camera to ECU orother video receiving device) using amplitude modulation for datatransmission.

When using a camera synchronization which is switching the camerasbetween two modes such as described in U.S. patent application Ser. No.14/097,581, filed Dec. 5, 2013 (Attorney Docket MAG04 P-2192), which ishereby incorporated herein by reference in its entirety, the two modesmay be switched by two phase shift pattern. Optionally, the activecomponent of the camera voltage control (which may be AC or DC) may notbe on the camera but at the sourcing (the ECU) side. Via the analogcontrol channel, the camera may transmit a command or continuous controlto the ECU voltage source control. The voltage may be raised or loweredon the ECU based on the camera's (requested) control signal. The controlsignal may be a PWM. The signal may be merged or incorporated with othercontrol signals such as the Î2C.

The camera or sensor may comprise any suitable camera or sensor.Optionally, the camera may comprise a “smart camera” that includes theimaging sensor array and associated circuitry and image processingcircuitry and electrical connectors and the like as part of a cameramodule, such as by utilizing aspects of the vision systems described inInternational Publication Nos. WO 2013/081984 and/or WO 2013/081985,which are hereby incorporated herein by reference in their entireties.

The system includes an image processor operable to process image datacaptured by the camera or cameras, such as for detecting objects orother vehicles or pedestrians or the like in the field of view of one ormore of the cameras. For example, the image processor may comprise anEyeQ2 or EyeQ3 image processing chip available from Mobileye VisionTechnologies Ltd. of Jerusalem, Israel, and may include object detectionsoftware (such as the types described in U.S. Pat. Nos. 7,855,755;7,720,580; and/or 7,038,577, which are hereby incorporated herein byreference in their entireties), and may analyze image data to detectvehicles and/or other objects. Responsive to such image processing, andwhen an object or other vehicle is detected, the system may generate analert to the driver of the vehicle and/or may generate an overlay at thedisplayed image to highlight or enhance display of the detected objector vehicle, in order to enhance the driver's awareness of the detectedobject or vehicle or hazardous condition during a driving maneuver ofthe equipped vehicle.

The vehicle may include any type of sensor or sensors, such as imagingsensors or radar sensors or lidar sensors or ladar sensors or ultrasonicsensors or the like. The imaging sensor or camera may capture image datafor image processing and may comprise any suitable camera or sensingdevice, such as, for example, a two dimensional array of a plurality ofphotosensor elements arranged in at least 640 columns and 480 rows (atleast a 640×480 imaging array, such as a megapixel imaging array or thelike), with a respective lens focusing images onto respective portionsof the array. The photosensor array may comprise a plurality ofphotosensor elements arranged in a photosensor array having rows andcolumns. Preferably, the imaging array has at least 300,000 photosensorelements or pixels, more preferably at least 500,000 photosensorelements or pixels and more preferably at least 1 million photosensorelements or pixels. The imaging array may capture color image data, suchas via spectral filtering at the array, such as via an RGB (red, greenand blue) filter or via a red/red complement filter or such as via anRCC (red, clear, clear) filter or the like. The logic and controlcircuit of the imaging sensor may function in any known manner, and theimage processing and algorithmic processing may comprise any suitablemeans for processing the images and/or image data.

For example, the vision system and/or processing and/or camera and/orcircuitry may utilize aspects described in U.S. Pat. Nos. 7,005,974;5,760,962; 5,877,897; 5,796,094; 5,949,331; 6,222,447; 6,302,545;6,396,397; 6,498,620; 6,523,964; 6,611,202; 6,201,642; 6,690,268;6,717,610; 6,757,109; 6,802,617; 6,806,452; 6,822,563; 6,891,563;6,946,978; 7,859,565; 5,550,677; 5,670,935; 6,636,258; 7,145,519;7,161,616; 7,230,640; 7,248,283; 7,295,229; 7,301,466; 7,592,928;7,881,496; 7,720,580; 7,038,577; 6,882,287; 5,929,786 and/or 5,786,772,and/or International Publication Nos. WO 2011/028686; WO 2010/099416; WO2012/061567; WO 2012/068331; WO 2012/075250; WO 2012/103193; WO2012/0116043; WO 2012/0145313; WO 2012/0145501; WO 2012/145818; WO2012/145822; WO 2012/158167; WO 2012/075250; WO 2012/0116043; WO2012/0145501; WO 2012/154919; WO 2013/019707; WO 2013/016409; WO2013/019795; WO 2013/067083; WO 2013/070539; WO 2013/043661; WO2013/048994; WO 2013/063014, WO 2013/081984; WO 2013/081985; WO2013/074604; WO 2013/086249; WO 2013/103548; WO 2013/109869; WO2013/123161; WO 2013/126715; WO 2013/043661 and/or WO 2013/158592,and/or U.S. patent applications, Ser. No. 14/272,834, filed May 8, 2014(Attorney Docket MAG04 P-2278); Ser. No. 14/356,330, filed May 5, 2014(Attorney Docket MAG04 P-1954); Ser. No. 14/269,788, filed May 5, 2014(Attorney Docket MAG04 P-2276); Ser. No. 14/268,169, filed May 2, 2014(Attorney Docket MAG04 P-2273); Ser. No. 14/264,443, filed Apr. 29, 2014(Attorney Docket MAG04 P-2270); Ser. No. 14/354,675, filed Apr. 28, 2014(Attorney Docket MAG04 P-1953); Ser. No. 14/248,602, filed Apr. 9, 2014(Attorney Docket MAG04 P-2257); Ser. No. 14/242,038, filed Apr. 1, 2014(Attorney Docket MAG04 P-2255); Ser. No. 14/229,061, filed Mar. 28, 2014(Attorney Docket MAG04 P-2246); Ser. No. 14/343,937, filed Mar. 10, 2014(Attorney Docket MAG04 P-1942); Ser. No. 14/343,936, filed Mar. 10, 2014(Attorney Docket MAG04 P-1937); Ser. No. 14/195,135, filed Mar. 3, 2014(Attorney Docket MAG04 P-2237); Ser. No. 14/195,136, filed Mar. 3, 2014(Attorney Docket MAG04 P-2238); Ser. No. 14/191,512, filed Feb. 27, 2014(Attorney Docket No. MAG04 P-2228); Ser. No. 14/183,613, filed Feb. 19,2014 (Attorney Docket No. MAG04 P-2225); Ser. No. 14/169,329, filed Jan.31, 2014 (Attorney Docket MAG04 P-2218); Ser. No. 14/169,328, filed Jan.31, 2014 (Attorney Docket MAG04 P-2217); Ser. No. 14/163,325, filed Jan.24, 2014 (Attorney Docket No. MAG04 P-2216); Ser. No. 14/159,772, filedJan. 21, 2014 (Attorney Docket MAG04 P-2215); Ser. No. 14/107,624, filedDec. 16, 2013 (Attorney Docket MAG04 P-2206); Ser. No. 14/102,981, filedDec. 11, 2013 (Attorney Docket MAG04 P-2196); Ser. No. 14/102,980, filedDec. 11, 2013 (Attorney Docket MAG04 P-2195); Ser. No. 14/098,817, filedDec. 6, 2013 (Attorney Docket MAG04 P-2193); Ser. No. 14/097,581, filedDec. 5, 2013 (Attorney Docket MAG04 P-2192); Ser. No. 14/093,981, filedDec. 2, 2013 (Attorney Docket MAG04 P-2197); Ser. No. 14/093,980, filedDec. 2, 2013 (Attorney Docket MAG04 P-2191); Ser. No. 14/082,573, filedNov. 18, 2013 (Attorney Docket MAG04 P-2183); Ser. No. 14/082,574, filedNov. 18, 2013 (Attorney Docket MAG04 P-2184); Ser. No. 14/082,575, filedNov. 18, 2013 (Attorney Docket MAG04 P-2185); Ser. No. 14/082,577, filedNov. 18, 2013 (Attorney Docket MAG04 P-2203); Ser. No. 14/071,086, filedNov. 4, 2013 (Attorney Docket MAG04 P-2208); Ser. No. 14/076,524, filedNov. 11, 2013 (Attorney Docket MAG04 P-2209); Ser. No. 14/052,945, filedOct. 14, 2013 (Attorney Docket MAG04 P-2165); Ser. No. 14/046,174, filedOct. 4, 2013 (Attorney Docket MAG04 P-2158); Ser. No. 14/016,790, filedOct. 3, 2013 (Attorney Docket MAG04 P-2139); Ser. No. 14/036,723, filedSep. 25, 2013 (Attorney Docket MAG04 P-2148); Ser. No. 14/016,790, filedSep. 3, 2013 (Attorney Docket MAG04 P-2139); Ser. No. 14/001,272, filedAug. 23, 2013 (Attorney Docket MAG04 P-1824); Ser. No. 13/970,868, filedAug. 20, 2013 (Attorney Docket MAG04 P-2131); Ser. No. 13/964,134, filedAug. 12, 2013 (Attorney Docket MAG04 P-2123); Ser. No. 13/942,758, filedJul. 16, 2013 (Attorney Docket MAG04 P-2127); Ser. No. 13/942,753, filedJul. 16, 2013 (Attorney Docket MAG04 P-2112); Ser. No. 13/927,680, filedJun. 26, 2013 (Attorney Docket MAG04 P-2091); Ser. No. 13/916,051, filedJun. 12, 2013 (Attorney Docket MAG04 P-2081); Ser. No. 13/894,870, filedMay 15, 2013 (Attorney Docket MAG04 P-2062); Ser. No. 13/887,724, filedMay 6, 2013 (Attorney Docket MAG04 P-2072); Ser. No. 13/852,190, filedMar. 28, 2013 (Attorney Docket MAG04 P-2046); Ser. No. 13/851,378, filedMar. 27, 2013 (Attorney Docket MAG04 P-2036); Ser. No. 13/848,796, filedMar. 22, 2012 (Attorney Docket MAG04 P-2034); Ser. No. 13/847,815, filedMar. 20, 2013 (Attorney Docket MAG04 P-2030); Ser. No. 13/800,697, filedMar. 13, 2013 (Attorney Docket MAG04 P-2060); Ser. No. 13/785,099, filedMar. 5, 2013 (Attorney Docket MAG04 P-2017); Ser. No. 13/779,881, filedFeb. 28, 2013 (Attorney Docket MAG04 P-2028); Ser. No. 13/774,317, filedFeb. 22, 2013 (Attorney Docket MAG04 P-2015); Ser. No. 13/774,315, filedFeb. 22, 2013 (Attorney Docket MAG04 P-2013); Ser. No. 13/681,963, filedNov. 20, 2012 (Attorney Docket MAG04 P-1983); Ser. No. 13/660,306, filedOct. 25, 2012 (Attorney Docket MAG04 P-1950); Ser. No. 13/653,577, filedOct. 17, 2012 (Attorney Docket MAG04 P-1948); and/or Ser. No.13/534,657, filed Jun. 27, 2012 (Attorney Docket MAG04 P-1892), and/orU.S. provisional applications, Ser. No. 61/991,810, filed May 12, 2014;Ser. No. 61/991,809, filed May 12, 2014; Ser. No. 61/990,927, filed May9, 2014; Ser. No. 61/989,652, filed May 7, 2014; Ser. No. 61/981,938,filed Apr. 21, 2014; Ser. No. 61/981,937, filed Apr. 21, 2014; Ser. No.61/977,941, filed Apr. 10, 2014; Ser. No. 61/977,940. filed Apr. 10,2014; Ser. No. 61/977,929, filed Apr. 10, 2014; Ser. No. 61/977,928,filed Apr. 10,2014; Ser. No. 61/973,922, filed Apr. 2, 2014; Ser. No.61/972,708, filed Mar. 31, 2014; Ser. No. 61/972,707, filed Mar. 31,2014; Ser. No. 61/969,474, filed Mar. 24, 2014; Ser. No. 61/955,831,filed Mar. 20, 2014; Ser. No. 61/953,970, filed Mar. 17, 2014; Ser. No.61/952,335, filed Mar. 13, 2014; Ser. No. 61/952,334, filed Mar. 13,2014; Ser. No. 61/950,261, filed Mar. 10, 2014; Ser. No. 61/950,261,filed Mar. 10, 2014; Ser. No. 61/947,638, filed Mar. 4, 2014; Ser. No.61/947,053, filed Mar. 3, 2014; Ser. No. 61/941,568, filed Feb. 19,2014; Ser. No. 61/935,485, filed Feb. 4, 2014; Ser. No. 61/935,057,filed Feb. 3, 2014; Ser. No. 61/935,056, filed Feb. 3, 2014; Ser. No.61/935,055, filed Feb. 3, 2014; Ser. No. 61/931,811, filed Jan. 27,2014; Ser. No. 61/919,129, filed Dec. 20, 2013; Ser. No. 61/919,130,filed Dec. 20, 2013; Ser. No. 61/919,131, filed Dec. 20, 2013; Ser. No.61/919,147, filed Dec. 20, 2013; Ser. No. 61/919,138, filed Dec. 20,2013, Ser. No. 61/919,133, filed Dec. 20, 2013; Ser. No. 61/918,290,filed Dec. 19, 2013; Ser. No. 61/915,218, filed Dec. 12, 2013; Ser. No.61/912,146, filed Dec. 5, 2013; Ser. No. 61/911, 666, filed Dec. 4,2013; Ser. No. 61/911,665, filed Dec. 4, 2013; Ser. No. 61/905,461,filed Nov. 18, 2013; Ser. No. 61/905,462, filed Nov. 18, 2013; Ser. No.61/901,127, filed Nov. 7, 2013; Ser. No. 61/895,610, filed Oct. 25,2013; Ser. No. 61/895,609, filed Oct. 25, 2013; Ser. No. 61/879,837,filed Sep. 19, 2013; Ser. No. 61/879,835, filed Sep. 19, 2013; Ser. No.61/878,877, filed Sep. 17, 2013; Ser. No. 61/875,351, filed Sep. 9,2013; Ser. No. 61/869,195, filed. Aug. 23, 2013; Ser. No. 61/864,835,filed Aug. 12, 2013; Ser. No. 61/864,836, filed Aug. 12, 2013; Ser. No.61/864,837, filed Aug. 12, 2013; Ser. No. 61/864,838, filed Aug. 12,2013; Ser. No. 61/856,843, filed Jul. 22, 2013, Ser. No. 61/845,061,filed Jul. 11, 2013; Ser. No. 61/844,630, filed Jul. 10, 2013; Ser. No.61/844,173, filed Jul. 9, 2013; Ser. No. 61/844,171, filed Jul. 9, 2013;Ser. No. 61/842,644, filed Jul. 3, 2013; Ser. No. 61/840,542, filed Jun.28, 2013; Ser. No. 61/838,619, filed Jun. 24, 2013; Ser. No. 61/838,621,filed Jun. 24, 2013; Ser. No. 61/837,955, filed Jun. 21, 2013; Ser. No.61/836,900, filed Jun. 19, 2013; Ser. No. 61/836,380, filed Jun. 18,2013; Ser. No. 61/833,080, filed Jun. 10, 2013; Ser. No. 61/830,375,filed Jun. 3, 2013; Ser. No. 61/830,377, filed Jun. 3, 2013; Ser. No.61/825,752, filed May 21, 2013; Ser. No. 61/825,753, filed May 21, 2013;Ser. No. 61/823,648, filed May 15, 2013; and/or Ser. No. 61/823,644,filed May 15, 2013; which are all hereby incorporated herein byreference in their entireties. The system may communicate with othercommunication systems via any suitable means, such as by utilizingaspects of the systems described in International Publication Nos.WO/2010/144900; WO 2013/043661 and/or WO 2013/081985, and/or U.S. patentapplication Ser. No. 13/202,005, filed Aug. 17, 2011 (Attorney DocketMAG04 P-1595), which are hereby incorporated herein by reference intheir entireties.

The imaging device and control and image processor and any associatedillumination source, if applicable, may comprise any suitablecomponents, and may utilize aspects of the cameras and vision systemsdescribed in U.S. Pat. Nos. 5,550,677; 5,877,897; 6,498,620; 5,670,935;5,796,094; 6,396,397; 6,806,452; 6,690,268; 7,005,974; 7,937,667;7,123,168; 7,004,606; 6,946,978; 7,038,577; 6,353,392; 6,320,176;6,313,454; and/or 6,824,281, and/or International Publication Nos. WO2010/099416; WO 2011/028686; and/or WO 2013/016409, and/or U.S. Pat.Publication No. US 2010-0020170, and/or U.S. patent application Ser. No.13/534,657, filed Jun. 27, 2012 (Attorney Docket MAG04 P-1892), whichare all hereby incorporated herein by reference in their entireties. Thecamera or cameras may comprise any suitable cameras or imaging sensorsor camera modules, and may utilize aspects of the cameras or sensorsdescribed in U.S. Publication No. US-2009-0244361 and/or U.S. patentapplication Ser. No. 13/260,400, filed Sep. 26, 2011 (Attorney DocketMAG04 P-1757), and/or U.S. Pat. Nos. 7,965,336 and/or 7,480,149, whichare hereby incorporated herein by reference in their entireties. Theimaging array sensor may comprise any suitable sensor, and may utilizevarious imaging sensors or imaging array sensors or cameras or the like,such as a CMOS imaging array sensor, a CCD sensor or other sensors orthe like, such as the types described in U.S. Pat. Nos. 5,550,677;5,670,935; 5,760,962; 5,715,093; 5,877,897; 6,922,292; 6,757,109;6,717,610; 6,590,719; 6,201,642; 6,498,620; 5,796,094; 6,097,023;6,320,176; 6,559,435; 6,831,261; 6,806,452; 6,396,397; 6,822,563;6,946,978; 7,339,149; 7,038,577; 7,004,606; 7,720,580; and/or 7,965,336,and/or International Publication Nos. WO/2009/036176 and/orWO/2009/046268, which are all hereby incorporated herein by reference intheir entireties.

The camera module and circuit chip or board and imaging sensor may beimplemented and operated in connection with various vehicularvision-based systems, and/or may be operable utilizing the principles ofsuch other vehicular systems, such as a vehicle headlamp control system,such as the type disclosed in U.S. Pat. Nos. 5,796,094; 6,097,023;6,320,176; 6,559,435; 6,831,261; 7,004,606; 7,339,149; and/or 7,526,103,which are all hereby incorporated herein by reference in theirentireties, a rain sensor, such as the types disclosed in commonlyassigned U.S. Pat. Nos. 6,353,392; 6,313,454; 6,320,176; and/or7,480,149, which are hereby incorporated herein by reference in theirentireties, a vehicle vision system, such as a forwardly, sidewardly orrearwardly directed vehicle vision system utilizing principles disclosedin U.S. Pat. Nos. 5,550,677; 5,670,935; 5,760,962; 5,877,897; 5,949,331;6,222,447; 6,302,545; 6,396,397; 6,498,620; 6,523,964; 6,611,202;6,201,642; 6,690,268; 6,717,610; 6,757,109; 6,802,617; 6,806,452;6,822,563; 6,891,563; 6,946,978; and/or 7,859,565, which are all herebyincorporated herein by reference in their entireties, a trailer hitchingaid or tow check system, such as the type disclosed in U.S. Pat. No.7,005,974, which is hereby incorporated herein by reference in itsentirety, a reverse or sideward imaging system, such as for a lanechange assistance system or lane departure warning system or for a blindspot or object detection system, such as imaging or detection systems ofthe types disclosed in U.S. Pat. Nos. 7,881,496; 7,720,580; 7,038,577;5,929,786 and/or 5,786,772, and/or U.S. provisional applications, Ser.No. 60/628,709, filed Nov. 17, 2004; Ser. No. 60/614,644, filed Sep. 30,2004; Ser. No. 60/618,686, filed Oct. 14, 2004; Ser. No. 60/638,687,filed Dec. 23, 2004, which are hereby incorporated herein by referencein their entireties, a video device for internal cabin surveillanceand/or video telephone function, such as disclosed in U.S. Pat. Nos.5,760,962; 5,877,897; 6,690,268; and/or 7,370,983, and/or U.S.Publication No. US-2006-0050018, which are hereby incorporated herein byreference in their entireties, a traffic sign recognition system, asystem for determining a distance to a leading or trailing vehicle orobject, such as a system utilizing the principles disclosed in U.S. Pat.Nos. 6,396,397 and/or 7,123,168, which are hereby incorporated herein byreference in their entireties, and/or the like.

Optionally, the circuit board or chip may include circuitry for theimaging array sensor and or other electronic accessories or features,such as by utilizing compass-on-a-chip or EC driver-on-a-chip technologyand aspects such as described in U.S. Pat. No. 7,255,451 and/or U.S.Pat. No. 7,480,149; and/or U.S. Publication No. US-2006-0061008 and/orU.S. patent application Ser. No. 12/578,732, filed Oct. 14, 2009(Attorney Docket DON01 P-1564), which are hereby incorporated herein byreference in their entireties.

Optionally, the vision system may include a display for displayingimages captured by one or more of the imaging sensors for viewing by thedriver of the vehicle while the driver is normally operating thevehicle. Optionally, for example, the vision system may include a videodisplay device disposed at or in the interior rearview mirror assemblyof the vehicle, such as by utilizing aspects of the video mirror displaysystems described in U.S. Pat. No. 6,690,268 and/or U.S. patentapplication Ser. No. 13/333,337, filed Dec. 21, 2011 (Attorney DocketDON01 P-1797), which are hereby incorporated herein by reference intheir entireties. The video mirror display may comprise any suitabledevices and systems and optionally may utilize aspects of the compassdisplay systems described in U.S. Pat. Nos. 7,370,983; 7,329,013;7,308,341; 7,289,037; 7,249,860; 7,004,593; 4,546,551; 5,699,044;4,953,305; 5,576,687; 5,632,092; 5,677,851; 5,708,410; 5,737,226;5,802,727; 5,878,370; 6,087,953; 6,173,508; 6,222,460; 6,513,252; and/or6,642,851, and/or European patent application, published Oct. 11, 2000under Publication No. EP 0 1043566, and/or U.S. Publication No.US-2006-0061008, which are all hereby incorporated herein by referencein their entireties. Optionally, the video mirror display screen ordevice may be operable to display images captured by a rearward viewingcamera of the vehicle during a reversing maneuver of the vehicle (suchas responsive to the vehicle gear actuator being placed in a reversegear position or the like) to assist the driver in backing up thevehicle, and optionally may be operable to display the compass headingor directional heading character or icon when the vehicle is notundertaking a reversing maneuver, such as when the vehicle is beingdriven in a forward direction along a road (such as by utilizing aspectsof the display system described in International Publication No. WO2012/051500, which is hereby incorporated herein by reference in itsentirety).

Optionally, the vision system (utilizing the forward facing camera and arearward facing camera and other cameras disposed at the vehicle withexterior fields of view) may be part of or may provide a display of atop-down view or birds-eye view system of the vehicle or a surround viewat the vehicle, such as by utilizing aspects of the vision systemsdescribed in International Publication Nos. WO 2010/099416; WO2011/028686; WO 2012/075250; WO 2013/019795; WO 2012/075250; WO2012/145822; WO 2013/081985; WO 2013/086249; and/or WO 2013/109869,and/or U.S. patent application Ser. No. 13/333,337, filed Dec. 21, 2011(Attorney Docket DON01 P-1797), which are hereby incorporated herein byreference in their entireties.

Optionally, a video mirror display may be disposed rearward of andbehind the reflective element assembly and may comprise a display suchas the types disclosed in U.S. Pat. Nos. 5,530,240; 6,329,925;7,855,755; 7,626,749; 7,581,859; 7,446,650; 7,370,983; 7,338,177;7,274,501; 7,255,451; 7,195,381; 7,184,190; 5,668,663; 5,724,187 and/or6,690,268, and/or in U.S. Publication Nos. US-2006-0061008 and/orUS-2006-0050018, which are all hereby incorporated herein by referencein their entireties. The display is viewable through the reflectiveelement when the display is activated to display information. Thedisplay element may be any type of display element, such as a vacuumfluorescent (VF) display element, a light emitting diode (LED) displayelement, such as an organic light emitting diode (OLED) or an inorganiclight emitting diode, an electroluminescent (EL) display element, aliquid crystal display (LCD) element, a video screen display element orbacklit thin film transistor (TFT) display element or the like, and maybe operable to display various information (as discrete characters,icons or the like, or in a multi-pixel manner) to the driver of thevehicle, such as passenger side inflatable restraint (PSIR) information,tire pressure status, and/or the like. The mirror assembly and/ordisplay may utilize aspects described in U.S. Pat. Nos. 7,184,190;7,255,451; 7,446,924 and/or 7,338,177, which are all hereby incorporatedherein by reference in their entireties. The thicknesses and materialsof the coatings on the substrates of the reflective element may beselected to provide a desired color or tint to the mirror reflectiveelement, such as a blue colored reflector, such as is known in the artand such as described in U.S. Pat. Nos. 5,910,854; 6,420,036; and/or7,274,501, which are hereby incorporated herein by reference in theirentireties.

Optionally, the display or displays and any associated user inputs maybe associated with various accessories or systems, such as, for example,a tire pressure monitoring system or a passenger air bag status or agarage door opening system or a telematics system or any other accessoryor system of the mirror assembly or of the vehicle or of an accessorymodule or console of the vehicle, such as an accessory module or consoleof the types described in U.S. Pat. Nos. 7,289,037; 6,877,888;6,824,281; 6,690,268; 6,672,744; 6,386,742; and 6,124,886, and/or U.S.Publication No. US-2006-0050018, which are hereby incorporated herein byreference in their entireties.

Changes and modifications in the specifically described embodiments canbe carried out without departing from the principles of the invention,which is intended to be limited only by the scope of the appendedclaims, as interpreted according to the principles of patent lawincluding the doctrine of equivalents.

1. A vision system for a vehicle, said vision system comprising: acamera disposed at a vehicle equipped with said vision system, whereinsaid camera, when disposed at the vehicle, has a field of view exteriorof the vehicle, said camera capturing image data; a control comprisingan image processor; a single coaxial cable connecting said camera withsaid control; wherein said single coaxial cable carries (i) image datafrom said camera to said control, (ii) camera control data from saidcontrol to said camera and (iii) electrical voltage for powering saidcamera; wherein said image processor is operable to process image datacaptured by said camera and carried to said control via said singlecoaxial cable; and wherein said single coaxial cable carries at leastone FBAS signal.
 2. The vision system of claim 1, wherein said visionsystem is operable to carry camera control data via modulation of acarrier wave of at least one analog signal on said single coaxial cable.3. The vision system of claim 2, wherein said carrier wave has afrequency that is outside the bandwidth of signals carrying image data.4. The vision system of claim 1, wherein said electrical voltagecomprises a direct current electrical voltage.
 5. The vision system ofclaim 1, wherein said electrical voltage comprises an alternatingcurrent electrical voltage.
 6. The vision system of claim 1, whereincamera control data is carried on said single coaxial cable by a signalhaving a frequency outside of the bandwidth of signals carrying imagedata on said single coaxial cable.
 7. The vision system of claim 6,wherein camera control data carried on said single coaxial cable has afrequency that has a sufficient Shannon distance from a frequency ofsignals carrying image data on said single coaxial cable.
 8. The visionsystem of claim 1, wherein said single coaxial cable carries calibrationand response data from said camera to said control.
 9. The vision systemof claim 1, wherein camera control data carried on said single coaxialcable from said control to said camera comprises initialization data.10. The vision system of claim 1, comprising a plurality of cameras andrespective coaxial cables connecting said cameras with said control. 11.The vision system of claim 10, wherein said plurality of cameras andsaid control are part of a multi-camera surround view vision system ofthe vehicle.
 12. A vision system for a vehicle, said vision systemcomprising: a plurality of cameras disposed at a vehicle equipped withsaid vision system, wherein each of said cameras, when disposed at thevehicle, has a respective field of view exterior of the vehicle, saidcameras capturing image data; a control comprising an image processor;wherein said plurality of cameras and said control are part of amulti-camera surround view vision system of the vehicle; a plurality ofcoaxial cables, each connecting a respective one of said cameras withsaid control; wherein each of said coaxial cables carries (i) image datafrom the respective camera to said control, (ii) camera control datafrom said control to the respective camera and (iii) electrical voltagefor powering the respective camera; wherein said image processor isoperable to process image data captured by said cameras and carried tosaid control via said coaxial cables; and wherein at least some of saidcoaxial cables carry at least one FBAS signal.
 13. The vision system ofclaim 12, wherein said vision system is operable to carry camera controldata via modulation of a carrier wave of at least one analog signal. 14.The vision system of claim 13, wherein said carrier wave has a frequencythat is outside the bandwidth of signals carrying image data on arespective one of said coaxial cables.
 15. The vision system of claim12, wherein said electrical voltage comprises a direct currentelectrical voltage.
 16. The vision system of claim 12, wherein saidelectrical voltage comprises an alternating current electrical voltage.17. The vision system of claim 12, wherein camera control data iscarried by a signal having a frequency outside of the bandwidth ofsignals carrying image data on a respective one of said coaxial cables.18. A vision system for a vehicle, said vision system comprising: aplurality of cameras disposed at a vehicle equipped with said visionsystem, wherein each of said cameras, when disposed at the vehicle, hasa respective field of view exterior of the vehicle, said camerascapturing image data; a control comprising an image processor; whereinsaid plurality of cameras and said control are part of a multi-camerasurround view vision system of the vehicle; a plurality of coaxialcables, each connecting a respective one of said cameras with saidcontrol; wherein at least some of said coaxial cables carry (i) imagedata from the respective camera to said control, (ii) camera controldata from said control to the respective camera and (iii) electricalvoltage for powering the respective camera; wherein camera control datais carried by a signal having a frequency outside of the bandwidth ofsignals carrying image data on a respective one of said at least some ofsaid coaxial cables; wherein said image processor is operable to processimage data captured by said cameras; and wherein said at least some ofsaid coaxial cables carry at least one FBAS signal.
 19. The visionsystem of claim 18, wherein said vision system is operable to carrycamera control data via modulation of a carrier wave of at least oneanalog signal, and wherein said carrier wave has a frequency that isoutside the bandwidth of signals carrying image data on a respective oneof said at least some of said coaxial cables.
 20. The vision system ofclaim 18, wherein said electrical voltage comprises an alternatingcurrent electrical voltage.